This edition of Introduction to Pharmacology has been thoroughly revised and updated as per MCI curriculum. The practical part of the book has been revised and modified to help the students during their practical examination. The book aims to be useful to the students of health sciences to learn the subject easily, thoroughly and in a short time. Pharmacology is an everchanging subject like medicine. Written in concise form with modern concepts so that the students are able to read and learn this subject, the book discusses all essential drugs, rational basis of therapeutics and recent advances in pharmacology. While writing this book, the author has followed the syllabus of pharmacology of different Indian Universities. It will be helpful to medical students as well as the students of pharmacology dental sciences pharmacy allied health sciences D nursing and Indian system of medicine, to acquire the basic principles necessary for rational use of drugs.